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Kobotan [32]
2 years ago
15

Look at the model below. Which formula is best represented by this model?​

Chemistry
1 answer:
Olenka [21]2 years ago
6 0
The third answer because there are two of each atom
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What is the percentage of water in the hydrate cocl2 • 6h2o
lord [1]

Answer:

52.17%

Explanation:

COCl2.6H20

C=12,O=16,Cl=35.5,H=1

Relative molecular mass of COCl2.6H2O= 12+16+71+6(2+16) = 99 + 108= 207g

Relative molecular mass of 6H2O = 108g

Percentage of water = (108/207 )*100

= 52.17%

8 0
3 years ago
What is an acid according to Arrhenius?
MariettaO [177]
Hello there.

<span>What is an acid according to Arrhenius?

</span><span>b. a substance that is a hydrogen ion donor
</span>
3 0
3 years ago
Read 2 more answers
It is possible to have more than the maximum amount of solute dissolved in a solvent.
vladimir1956 [14]

B. False

When the maximum amount of solute has been dissolved in a given amount of solvent, we say that the solution is saturated with solute.

3 0
3 years ago
Read 2 more answers
Please check this for me?
kolbaska11 [484]
The answer is 
<span>2PbS(s) + 3O2(g) = 2PbO(s) + 2SO2(g)

Your answer is not yet balanced because you have 3 oxygen atoms. it should be balanced by multiplying both side by 2 such as the balanced equation I made. To check it, I will explain why your answer is not yet balanced.

check: (from your equation)
</span> 1-Pb-1
 1-S-1
2 -O-3
the difference between the reactant and the product of Oxygen will prove that it is not yet balanced.

If you use 2PbS(s) + 3O2(g) = 2PbO(s) + 2SO2(g), to check it:
2-Pb-2
 2-S-2
6 -O-6
then this is now balance
6 0
3 years ago
5. Which quantities must be conserved in all chemical reactions?
sergey [27]
A force of attraction that holds atom together 
<span>When atoms react they form a chemical bond which is defined as a force of attraction that holds atom together. A force of attraction is defined as a kind of force that draws two or more objects together regardless of distance. There are two major categories of forces of attraction, one is intramolecular and intermolecular. Intramolecular forces is the presence of forces in atoms internally. While intermolecular is the force by which the force that is existent in two or more elements. </span>
3 0
3 years ago
Read 2 more answers
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